Not documented statistics function

[Antonio Zugaldia]

Hello everybody,

	I've seen in "gsl_statistics_double.h" this two functions:

      * double gsl_stats_pvariance (const double data1[], const size_t
        stride1, const size_t n1, const double data2[], const size_t
        stride2, const size_t n2);

      * double gsl_stats_ttest (const double data1[], const size_t
        stride1, const size_t n1, const double data2[], const size_t
        stride2, const size_t n2);

but I cannot see any reference to them in the manual. What are they for?

Thanks and regards :)

A.

-- 
Antonio Zugaldía <azugaldia@yahoo.es>
http://www.zugaldia.org/antonio